Qu Wenruo 14033b08a0 btrfs: don't save block group root into super block ... The extent tree v2 needs a new root for storing all block group items, the whole feature hasn't been finished yet so we can afford to do some changes. My initial proposal years ago just added a new tree rootid, and load it from tree root, just like what we did for quota/free space tree/uuid/extent roots. But the extent tree v2 patches introduced a completely new way to store block group tree root into super block which is arguably wasteful. Currently there are only 3 trees stored in super blocks, and they all have their valid reasons: - Chunk root Needed for bootstrap. - Tree root Really the entry point for all trees. - Log root This is special as log root has to be updated out of existing transaction mechanism. There is not even any reason to put block group root into super blocks, the block group tree is updated at the same time as the old extent tree, no need for extra bootstrap/out-of-transaction update. So just move block group root from super block into tree root. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>		2022-09-26 12:28:00 +02:00
..
tests	btrfs: remove use btrfs_remove_free_space_cache instead of variant	2022-09-26 12:27:58 +02:00
Kconfig	btrfs: use generic Kconfig option for 256kB page size limit	2022-01-20 08:52:55 +02:00
Makefile	Kbuild: add -Wno-shift-negative-value where -Wextra is used	2022-03-13 17:30:31 +09:00
acl.c	btrfs: reserve correct number of items for inode creation	2022-05-16 17:03:08 +02:00
async-thread.c	btrfs: simplify WQ_HIGHPRI handling in struct btrfs_workqueue	2022-05-16 17:03:15 +02:00
async-thread.h	btrfs: remove unused typedefs get_extent_t and btrfs_work_func_t	2022-07-25 17:45:36 +02:00
backref.c	btrfs: sink iterator parameter to btrfs_ioctl_logical_to_ino	2022-07-25 17:45:36 +02:00
backref.h	btrfs: sink iterator parameter to btrfs_ioctl_logical_to_ino	2022-07-25 17:45:36 +02:00
block-group.c	btrfs: enhance unsupported compat RO flags handling	2022-09-26 12:28:00 +02:00
block-group.h	btrfs: get rid of block group caching progress logic	2022-09-26 12:27:58 +02:00
block-rsv.c	btrfs: don't save block group root into super block	2022-09-26 12:28:00 +02:00
block-rsv.h	btrfs: use enum for btrfs_block_rsv::type	2022-07-25 17:45:40 +02:00
btrfs_inode.h	btrfs: add optimized btrfs_ino() version for 64 bits systems	2022-07-25 17:45:41 +02:00
check-integrity.c	fs/btrfs: Use the enum req_op and blk_opf_t types	2022-07-14 12:14:32 -06:00
check-integrity.h	btrfs: check-integrity: split submit_bio from btrfsic checking	2022-05-16 17:03:12 +02:00
compression.c	btrfs: give struct btrfs_bio a real end_io handler	2022-09-26 12:27:59 +02:00
compression.h	for-5.20-tag	2022-08-03 14:54:52 -07:00
ctree.c	btrfs: fix lockdep splat with reloc root extent buffers	2022-08-17 16:19:12 +02:00
ctree.h	btrfs: don't save block group root into super block	2022-09-26 12:28:00 +02:00
delalloc-space.c	btrfs: convert count_max_extents() to use fs_info->max_extent_size	2022-07-25 17:45:41 +02:00
delalloc-space.h	…
delayed-inode.c	btrfs: use delayed items when logging a directory	2022-09-26 12:27:57 +02:00
delayed-inode.h	btrfs: use delayed items when logging a directory	2022-09-26 12:27:57 +02:00
delayed-ref.c	btrfs: switch btrfs_block_rsv::full to bool	2022-07-25 17:45:40 +02:00
delayed-ref.h	btrfs: remove btrfs_delayed_extent_op::is_data	2022-05-16 17:17:31 +02:00
dev-replace.c	btrfs: don't take a bio_counter reference for cloned bios	2022-09-26 12:27:58 +02:00
dev-replace.h	btrfs: zoned: mark block groups to copy for device-replace	2021-02-09 02:46:07 +01:00
dir-item.c	btrfs: use btrfs_for_each_slot in btrfs_search_dir_index_item	2022-05-16 17:03:07 +02:00
discard.c	btrfs: fix typos in comments	2021-06-22 14:11:57 +02:00
discard.h	btrfs: cleanup btrfs_discard_update_discardable usage	2020-12-08 15:54:02 +01:00
disk-io.c	btrfs: don't save block group root into super block	2022-09-26 12:28:00 +02:00
disk-io.h	btrfs: check superblock to ensure the fs was not modified at thaw time	2022-09-26 12:27:59 +02:00
export.c	btrfs: locking: rip out path->leave_spinning	2020-12-08 15:54:02 +01:00
export.h	…
extent-io-tree.h	btrfs: move btrfs_bio allocation to volumes.c	2022-09-26 12:27:58 +02:00
extent-tree.c	btrfs: get rid of block group caching progress logic	2022-09-26 12:27:58 +02:00
extent_io.c	btrfs: give struct btrfs_bio a real end_io handler	2022-09-26 12:27:59 +02:00
extent_io.h	btrfs: move btrfs_bio allocation to volumes.c	2022-09-26 12:27:58 +02:00
extent_map.c	btrfs: assert we have a write lock when removing and replacing extent maps	2022-03-14 13:13:50 +01:00
extent_map.h	btrfs: defrag: don't use merged extent map for their generation check	2022-02-23 17:43:13 +01:00
file-item.c	btrfs: rename btrfs_insert_file_extent() to btrfs_insert_hole_extent()	2022-09-26 12:27:54 +02:00
file.c	btrfs: log conflicting inodes without holding log mutex of the initial inode	2022-09-26 12:27:57 +02:00
free-space-cache.c	btrfs: remove use btrfs_remove_free_space_cache instead of variant	2022-09-26 12:27:58 +02:00
free-space-cache.h	btrfs: remove use btrfs_remove_free_space_cache instead of variant	2022-09-26 12:27:58 +02:00
free-space-tree.c	btrfs: get rid of block group caching progress logic	2022-09-26 12:27:58 +02:00
free-space-tree.h	…
inode-item.c	btrfs: make should_throttle loop local in btrfs_truncate_inode_items	2022-01-07 14:18:25 +01:00
inode-item.h	btrfs: add inode to truncate control	2022-01-07 14:18:24 +01:00
inode.c	btrfs: give struct btrfs_bio a real end_io handler	2022-09-26 12:27:59 +02:00
ioctl.c	btrfs: use fs_info->max_extent_size in get_extent_max_capacity()	2022-07-25 17:45:41 +02:00
locking.c	btrfs: fix lockdep splat with reloc root extent buffers	2022-08-17 16:19:12 +02:00
locking.h	btrfs: fix lockdep splat with reloc root extent buffers	2022-08-17 16:19:12 +02:00
lzo.c	btrfs: replace kmap() with kmap_local_page() in lzo.c	2022-07-25 17:45:33 +02:00
misc.h	btrfs: use correct header for div_u64 in misc.h	2021-09-07 14:29:50 +02:00
ordered-data.c	btrfs: add lockdep annotations for the ordered extents wait event	2022-09-26 12:27:53 +02:00
ordered-data.h	btrfs: remove the finish_func argument to btrfs_mark_ordered_io_finished	2022-07-25 17:45:37 +02:00
orphan.c	…
print-tree.c	btrfs: unify the error handling pattern for read_tree_block()	2022-03-14 13:13:53 +01:00
print-tree.h	btrfs: print the actual offset in btrfs_root_name	2021-01-07 17:25:05 +01:00
props.c	btrfs: move common inode creation code into btrfs_create_new_inode()	2022-05-16 17:03:08 +02:00
props.h	btrfs: move common inode creation code into btrfs_create_new_inode()	2022-05-16 17:03:08 +02:00
qgroup.c	btrfs: fix race between quota enable and quota rescan ioctl	2022-09-26 12:27:58 +02:00
qgroup.h	btrfs: avoid blocking on space revervation when doing nowait dio writes	2022-05-16 17:03:10 +02:00
raid56.c	btrfs: properly abstract the parity raid bio handling	2022-09-26 12:27:59 +02:00
raid56.h	btrfs: properly abstract the parity raid bio handling	2022-09-26 12:27:59 +02:00
rcu-string.h	…
ref-verify.c	btrfs: stop accessing ->extent_root directly	2022-01-03 15:09:49 +01:00
ref-verify.h	…
reflink.c	btrfs: clean up chained assignments	2022-07-25 17:45:39 +02:00
reflink.h	…
relocation.c	btrfs: fix lockdep splat with reloc root extent buffers	2022-08-17 16:19:12 +02:00
root-tree.c	btrfs: simplify error handling at btrfs_del_root_ref()	2022-09-26 12:27:58 +02:00
scrub.c	btrfs: properly abstract the parity raid bio handling	2022-09-26 12:27:59 +02:00
send.c	btrfs: send: fix failures when processing inodes with no links	2022-09-26 12:27:57 +02:00
send.h	btrfs: send: add support for fs-verity	2022-09-26 12:27:55 +02:00
space-info.c	btrfs: dump all space infos if we abort transaction due to ENOSPC	2022-09-26 12:27:59 +02:00
space-info.h	btrfs: dump all space infos if we abort transaction due to ENOSPC	2022-09-26 12:27:59 +02:00
struct-funcs.c	btrfs: remove redundant check in up check_setget_bounds	2022-07-25 17:45:33 +02:00
subpage.c	btrfs: remove extent writepage address space operation	2022-07-25 17:45:37 +02:00
subpage.h	btrfs: make nodesize >= PAGE_SIZE case to reuse the non-subpage routine	2022-05-16 17:03:11 +02:00
super.c	btrfs: enhance unsupported compat RO flags handling	2022-09-26 12:28:00 +02:00
sysfs.c	btrfs: sysfs: show discard stats and tunables in non-debug build	2022-09-26 12:27:57 +02:00
sysfs.h	btrfs: split and refactor btrfs_sysfs_remove_devices_dir	2020-10-07 12:12:21 +02:00
transaction.c	btrfs: don't save block group root into super block	2022-09-26 12:28:00 +02:00
transaction.h	btrfs: pass btrfs_fs_info for deleting snapshots and cleaner	2022-03-14 13:13:52 +01:00
tree-checker.c	btrfs: tree-checker: check for overlapping extent items	2022-08-17 16:20:25 +02:00
tree-checker.h	btrfs: tree-checker: check extent buffer owner against owner rootid	2022-05-16 17:03:09 +02:00
tree-defrag.c	btrfs: remove unnecessary extent root check in btrfs_defrag_leaves	2022-01-03 15:09:48 +01:00
tree-log.c	btrfs: simplify adding and replacing references during log replay	2022-09-26 12:27:57 +02:00
tree-log.h	btrfs: use delayed items when logging a directory	2022-09-26 12:27:57 +02:00
tree-mod-log.c	btrfs: fix race when picking most recent mod log operation for an old root	2021-04-20 19:27:17 +02:00
tree-mod-log.h	btrfs: add and use helper to get lowest sequence number for the tree mod log	2021-04-19 17:25:17 +02:00
ulist.c	…
ulist.h	…
uuid-tree.c	btrfs: drop the _nr from the item helpers	2022-01-03 15:09:43 +01:00
verity.c	btrfs: send: add support for fs-verity	2022-09-26 12:27:55 +02:00
volumes.c	btrfs: check superblock to ensure the fs was not modified at thaw time	2022-09-26 12:27:59 +02:00
volumes.h	btrfs: give struct btrfs_bio a real end_io handler	2022-09-26 12:27:59 +02:00
xattr.c	btrfs: check if root is readonly while setting security xattr	2022-08-22 18:06:30 +02:00
xattr.h	…
zlib.c	btrfs: zlib: replace kmap() with kmap_local_page() in zlib_decompress_bio()	2022-07-25 17:45:41 +02:00
zoned.c	btrfs: get rid of block group caching progress logic	2022-09-26 12:27:58 +02:00
zoned.h	btrfs: zoned: activate metadata block group on flush_space	2022-07-25 17:45:42 +02:00
zstd.c	btrfs: zstd: replace kmap() with kmap_local_page()	2022-07-25 17:45:40 +02:00